Mattia Campagnano

Mattia Campagnano

Friday, June 26, 2015

When your Mac goes bad: Repair & Reinstall OS X with OS X Utilities


OS X is a real warhorse but, in uncommon circumstances, you might experience boot errors or major system issues.

You might also want to start from scratch because you're unhappy about the overall performance, or you're upgrading to a new version.

There are different schools of thought when it comes down to upgrading. Some think installing the new version on top of the previous one is the way to go, while other think it's best to perform a fresh reinstall.

In all the above cases, you need to use OS X Utilities.

Wednesday, June 24, 2015

Announcement: Udemy Class "OS X Basics for Windows Switchers" realized by Mattia Campagnano

Hello, readers.

I've maintained this blog for more than two years, focusing mostly on OS X.

Thanks for your constant growing support!

My blogging experience allowed me to realize an online class for Udemy, OS X Basics for Windows Switchers.

Take advantage of this learning opportunity and click here to join the class.

I'll see ya around campus!

Tuesday, June 23, 2015

LinkedIn, can’t you see your updates in the homepage? Here’s why.

I have recently noticed that, whenever I posted an update on LinkedIn, it was never shown and my LinkedIn Homepage looked to be static.

After investigating and researching, I realized that LinkedIn has changed the way updates work.

In fact, the default setting (Top Updates) now shows you only the best updates selected for you by LinkedIn.

If you want to see the latest updates, you need to select "Recent Updates".

3 Quick Hot OS X Terminal hacks

OS X is a user-friendly OS. For this reason, most of its users have likely never used Terminal in their lives.

However, in some rocky situations, the appropriate Terminal command can save the day much faster than any GUI can.

Wednesday, June 17, 2015

OS X -  Use Disk Utility to fix system issues

At times you may experience issues with OS X but you can't narrow down their causes.

Your OS X performs slower than usual, you have errors opening system utilities and experience anyway a poor performance.

This situation is not very common but, if so, before re-imaging the machine, it can come in handy to try verifying and repairing your disk and your disk permissions with Disk Utility.

Disk Utility, similarly to Windows Disk Management, allows to manage your disks and partitions and to fix any issues they can have.

You can create and delete partitions, erase a partition, etc.

In this case, we'll have to run Verify Disk.


Monday, June 15, 2015

OS X - Spotlight as a search engine: overlooked feature or revolution?

Spotlight is a built-in OS X feature allowing to search both your local computer and the Internet, your email, your instant messages, etc.

It's very helpful and I use it a lot, but I had overlooked its potential so far.

Spotlight can be used like a Web search engine with a click, without having to open your browser (see below figure).

Much needs to be done for it to compete with the search engines that dominate the market, such as Google, Microsoft's Bing, etc. but nonetheless it can be faster and more accurate.

Tuesday, June 9, 2015

Windows 8.1 - Power down, Restart, Logout and Search Files from the task bar (Use the task bar like a pro to skip the Metro interface)

One of the features of Windows 8.1 I find most annoying is the duality Start Screen/Desktop Mode.

Every time you have to shutdown or restart your computer, log out or search for files, you need to go from Desktop Mode to Start Screen and move to the Metro interface.

I find it time-consuming and counterproductive, so I came up with a way of performing these actions from the task bar without moving from Desktop Mode, by using the shortcut functionality.


Friday, June 5, 2015

Make your LinkedIn more secure


Yesterday, while I was looking for other specific settings, I opened the security settings of my account and I realized that all my connections to LinkedIn were unencrypted as a default.

It was no biggie for me because I use HTTPS EVERYWHERE, which forces your browser to always use HTTPS, but that didn't look good.

Luckily it's possible to enable a secure connection and to add a two-step verification to your account and, if you haven't done it yet, I'd recommend you to do it right away.

On the right corner of LinkedIn homepage, you'll see a small pic of yourself.

If you hover over it, you'll notice a series of options. Choose Privacy & Settings: Manage.

Thursday, June 4, 2015

How to hack into a firewalled system

LEGAL DISCLAIMER: This "hack" has been performed by using virtual machines running on my own computer, don't use it against other people's systems, unless you've been given explicit written permission by their owners. I'm not responsible for any unintended use of these instructions.

Pentesters have to find a way to hack into a system.

Most beginner-level tutorials start from exploiting a system configured in a purposely vulnerable way, with a disabled firewall and a series of open ports.

I don't like playing too easy, so I looked for a way to exploit a firewalled system.

For my purposes I used a Windows XP SP3 victim virtual machine and an attacking Kali Linux virtual machine.

What they won’t tell you about Windows 10 - Myths to debunk and hot air.

This post updates my previous posts: 

Microsoft has announced that Windows 10 will be officially released on July 29, 2015.

In the meantime, I've tested the latest build (10074) for you.

Tuesday, June 2, 2015

Bye-bye Ransomware! ACYA later!

In the latest months new and peskier ransomware variants are dramatically affecting both Windows and OS X computers.

In the worst-case scenario, your files get thoroughly encrypted and the only way to get them back is to pay the ransom.

This reaffirms once more the importance of the first IT commandment: ACYA (Always Cover Your Ass).
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